How to Build a Camper Van Bed | Platform Plans That Work

Most camper van beds boil down to a fixed platform, a folding bench conversion, a pull-out slide, or a lift-up slatted design. The practical route to any of them is the same: measure everything twice, sketch the layout, build a frame you can trust on rough roads, and add a solid top. The full build takes a weekend with basic tools and roughly $100–$300 in lumber and hardware, depending on how fancy you go.

Measure Your Van Before You Buy a Single Board

Measure the interior width, length, and height at floor level and again at mattress height — van walls taper inward as they rise. Note wheel wells, seat brackets, storage bins, and factory wiring before planning anything. A tape measure and a notebook beat nice design software every time at this stage.

The single most important decision is sleeping crosswise or lengthwise. Vans with flares or wide bodies often allow sideways sleeping, which frees the whole length for other uses. Narrower vans force a lengthwise bed. Sketch your layout by hand or on a tablet before cutting — it is far cheaper to erase than to buy new plywood.

Choose a Frame Style That Matches Your Skills

Your frame options range from simple lumber to modular aluminum, and each has a real trade-off worth knowing before you commit.

• 2×4 wood frame — the simplest, most forgiving option. Easy to cut with a circular saw, cheap to replace, and rigid enough for most vans.
• 2×2 timber frame — a lighter carcassing approach that works well for fixed beds where weight matters more than ultimate strength.
• 80/20 aluminum extrusion — the modular route favored by Engineers Who Van Life. Builds from two side rectangles plus three cross-lengths, and lets you reconfigure later. Costs more and needs special hardware.
• Unistrut metal framing — a sturdy industrial option with gusset plates, useful if you also want integrated headboards or side shelves.

Whichever you pick, build a rectangular base with vertical legs and a top deck, and space support members every 16–18 inches so the platform never flexes under weight. Plywood thickness runs from 1/2 inch for light side panels up to 3/4 inch for a deck that holds two sleepers without bowing.

Anchor Everything and Test Before Travel

A loose bed becomes a dangerous projectile on bumpy roads, so secure the frame to the van floor, walls, or structural studs using screws, bolts, or metal brackets. Use screws rather than nails whenever you might disassemble it later —

If you build a folding bench conversion, use long piano hinges and locking hardware like barrel bolts to keep the bed from collapsing mid-trip. For pull-out designs, mount rails or hardwood slats so the moving section tucks cleanly under a bench in daytime.

Test-fit everything before your first trip: raise and lower hinged sections, slide pull-outs in and out, and check that no fastener interferes with seat belts, airbags, or body panels. If you plan to camp near vehicle wiring, leave modular access panels so repairs stay reachable.

Fit the Mattress Last

Add the mattress only after the platform is complete, then test the full setup lying down. Camper van mattresses often need custom cutting or segmented sections to fit around wheel wells and tapered walls — a standard home mattress rarely fits cleanly. Bed height is the final trade-off: higher platforms give more under-bed storage for bins and gear, while lower ones make it easier to sit up and change clothes. Find the height that balances both before you commit to leg lengths.

If you want a convertible setup that doubles as daytime seating, check our tested roundup of the best van sofa bed options for camper conversions before you build — a quality unit can save you the carpentry entirely.

FAQs

What plywood thickness should I use for a camper van bed?

Use 3/4 inch plywood for the main sleeping deck to prevent flex under two sleepers, with 1/2 inch panels fine for sides and light structural pieces. Support beams spaced every 16 to 18 inches keep thinner sheets rigid, so match your plywood thickness to your support spacing rather than guessing.

Can I sleep sideways in my van?

Only if your van’s interior width at mattress height exceeds your height plus a few inches of clearance. Vans with flares or wide bodies often allow crosswise sleeping, while narrower models force a lengthwise layout. Measure at mattress height, not floor level, because walls taper inward as they rise.

Do I need to bolt the bed frame to the van floor?

Yes, anchor the frame securely using screws, bolts, or brackets into the floor, walls, or structural studs. A loose bed shifts on bumpy roads and becomes a safety hazard in a sudden stop. Use screws rather than nails so you can disassemble the bed later if you sell the van.